2146120289 has 2 divisors, whose sum is σ = 2146120290. Its totient is φ = 2146120288.

The previous prime is 2146120261. The next prime is 2146120313. The reversal of 2146120289 is 9820216412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2110024225 + 36096064 = 45935^2 + 6008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146120289 - 2¹⁶ = 2146054753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2146120189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073060144 + 1073060145.

It is an arithmetic number, because the mean of its divisors is an integer number (1073060145).

Almost surely, 2^2146120289 is an apocalyptic number.

It is an amenable number.

2146120289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146120289 is an equidigital number, since it uses as much as digits as its factorization.

2146120289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2146120289 is about 46326.2375873543. The cubic root of 2146120289 is about 1289.8860723055.

The spelling of 2146120289 in words is "two billion, one hundred forty-six million, one hundred twenty thousand, two hundred eighty-nine".